A Vulcan woman, T'Yamar T'Ashaii T'Sera is an astrophysicist specialising in quantum singularities and phase fields. She qualified with a PhD from the Vulcan Science Academy. She is serving aboard the USS Constitution in a civilian role, studying the astrophysical anomalies in the Marchlands region.
She the daughter of Saveron, a Nel-Gathic Vulcan man serving on the USS Constitution and T'Rel, a Golic Vulcan woman who is a teacher and Priestess at the Temple of Gol. Due to their separation during her youth, her relationship with both her parents can be a little strained at times.
Her siblings are Teron and Saavok.